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DaniilM [7]
3 years ago
11

Elp help help help help help help help help help help help hepl heplhpekhpleh

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer: A: 4

Step-by-step explanation:

10/2=5

15/3=5

20/x=5 x=4

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The endpoints of the longest chord on a circle are (4, 5.5) and (4, 10.5).
In-s [12.5K]
The longest chord on the circle is the diameter, and the center of the circle is the midpoint of the diameter.

Use the midpoint formula to find the center
((x1 +x2)/2 , (y1+y2)/2).. Just substitute them for the solution


the x-coordinates are the same, so you can just subtract the y-coordinates to find the radius. 
10.5 - 8 = 2.5

The equation of the circle is (x - h)² + (y - k)² = r² where r is the radius and (h, k) is the center.

(x - 4)² + (y - 8)² = 6.25
5 0
3 years ago
Read 2 more answers
Helpppp plsss its due tonight !!
Olegator [25]

Answer: D.

Step-by-step explanation:

1. Look at the range/IQR of each box-plot

2. The smaller the range = the less variability

3 0
3 years ago
What does x equal in this equation -5x + 8 = -2
AnnyKZ [126]

Answer:

x = 2

Step-by-step explanation:

-5x + 8 = -2

-5x + 8 - 8 = -2 -8

-5x = -10

-5x/5 = -10/5

-x = -2

x=2

8 0
2 years ago
Read 2 more answers
Help as soon as possible please
marta [7]

(3x + 5)° + (10x - 7)° = 180°

13x + (-2) = 180

13x = 180 + 2

13x = 182

x = 14

∠QRT = 3 * 14 + 5 = 42 + 5 = 47°

∠TRS = 10 * 14 - 7 = 140 - 7 = 133°

6 0
3 years ago
Carpect costs $16 a square foot. A rectangular floor is 16 feet long by 14 feet wide. How much would it cost to carpet the floor
DerKrebs [107]

Answer:

$3584

Step-by-step explanation:

- because its a rectangle, the area of the floor is length*width, so 16*14 = 224 square feet

- one square foot is $16, so 224 sqaure feet are 224*16

= 3584

8 0
3 years ago
Read 2 more answers
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